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Why are foam and fiber glass good heat insulators?
i think it is due to them having air spaces so it takes longer for heat to escape
Why are blankets good insulators?
Blankets are defined to be insulators.
Why are feathers good insulators?
Feathers are good insulators because they trap air. Motionless air is a very good insulator.
Are all insulators and conductors solids?
No, most gases are good insulators. Fluids can be good conductors. Mercury is normally a liquid and is a good conductor.
Are insulators good conductor of heat?
Insulators are the complete opposite of conductors. Insulators insulate the heat, but conductors let it pass straight through.
Why are foam and air good insulators?
it is
A good electrical insulator?
Two good Insulators are foam and styrafoam
Why are foam and fiber glass good heat insulators?
i think it is due to them having air spaces so it takes longer for heat to escape
What substances are the best insulators?
Usually nonmetals. Rubber, plastic, wood, cloth, paper, Styrofoam, tinfoil (to reflect the heat.)The most common insulator for electricity is plastic.
Why are plastic good electricity insulators?
Plastics are a good electrical insulators because they are insulators. Electricity could not pass through them unlike copper. Another good example of insulators is rubber.
Why are blankets good insulators?
Blankets are defined to be insulators.
Are good thermal insulators good electrical insulators too?
no A2: Not necessarily. Solid plastics or solid glass or ceramic have high dielectric strength but not good thermal insulation. Closed-cell foam has good thermal insulating properties but not as good a dielectric strength as solid--there are pockets of gas or air in it. The D.S. is not much better than using the same volume of gas, alone.
Are good thermal insulators also good electrical insulators?
Usually. A2: Not, not usually. Something with high thermal efficiency usually has "pockets" of gas in it, say, closed-cell polyurethane foam. The total dielectric strength, therefore, is not much better than using the same volume of gas or air used to blow it.
How do you make a thermos without a vacuum that prevents heat?
Insulate the thermos with a very low heat-conducting material. Low density objects such as ceramic or foam are typically good insulators.
What kinds of materials make good insulators?
There are a number of materials that make good thermal insulators. Blankets and pockets of air make good thermal insulators for example.
What are some good insulators?
plastic, paper, wood, cardboard, and rubber are all good insulators
Why are Popsicle sticks good insulators?
If they are dry they would act as insulators.
